Title: Analysis of secrecy performance under double shadowed κ-μ fading channels

Authors: Damepaia Lato; Rajkishur Mudoi

Addresses: Department of Electronics and Communication Engineering, North-Eastern Hill University, Shillong, Meghalaya, 793022, India ' Department of Electronics and Communication Engineering, North-Eastern Hill University, Shillong, Meghalaya, 793022, India

Abstract: In this paper, the physical layer security (PLS) under the double shadowed κ-μ fading channel is investigated. Being a composite fading channel model, it is a realistic representation of the propagation environment in which wireless signals experience a complex interplay of different phenomena. The mathematical statements of the secrecy outage probability (SOP) and the probability of non-zero secrecy capacity (PNSC) have been investigated by considering one legitimate receiver and one eavesdropper listening to the source transmitting confidential information. Based on the obtained mathematical expressions, the secrecy performance metrics are analysed and the results are plotted for both the SOP and the PNSC. It can be observed that as the signal-to-noise ratio (SNR) of the legitimate user increases, the SOP reduces and the secrecy capacity increases for the double shadowed κ-μ distributions.

Keywords: composite fading channel; double shadowed κ-μ fading channel; secrecy capacity; PLS; physical layer security; SOP; secrecy outage probability.

DOI: 10.1504/IJAACS.2025.147724

International Journal of Autonomous and Adaptive Communications Systems, 2025 Vol.18 No.3, pp.278 - 292

Received: 20 Feb 2024
Accepted: 24 Apr 2024
Published online: 28 Jul 2025 *

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